Table 4.

Cell proliferation data

Group	Cell density (×106 cells/mL)	Deoxyribose new synthesis (1-m0)a	m5/Σm G6PDH activity (m ≠ 0)	m3/Σm transketolase activity (m ≠ 0)
A (control)	2.34 ± 0.06	0.258 ± 0.010	0.302 ± 0.008	0.244 ± 0.005
B	1.31 ± 0.10**	0.269 ± 0.002	0.315 ± 0.001	0.259 ± 0.001*
C	1.98 ± 0.24	0.307 ± 0.013*	0.274 ± 0.009*	0.226 ± 0.000**
D	1.65 ± 0.17*	0.329 ± 0.003*	0.310 ± 0.001	0.258 ± 0.001*

Data are presented as the mean ± SEM

^aThe sum of all isotopomers equal to 1. For example, if half of the DNA is labeled during one cell division, this equals a new DNA synthesis fraction of 0.5

^*Significantly different when compared with control A, p <0.05

^**Significantly different when compared with control A, p <0.01